Fix of discussion test broken by direct access
Fix of discussion test broken by direct access

The following commit:
https://github.com/Stanford-Online/edx-platform/commit/d0d6285c93f6dfde9c0e9f27e75bea08ec3e2454
restricted forum usage to non-direct access users. However this caused the test to break
as the test user was created without a UserProfile and, in effect, was a direct access
user.

Stanford-Online/edx-platform,caesar2164/edx-platform,Stanford-Online/edx-platform,jbassen/edx-platform,Stanford-Online/edx-platform,jbassen/edx-platform,jbassen/edx-platform,caesar2164/edx-platform,Stanford-Online/edx-platform,jbassen/edx-platform,caesar2164/edx-platform,caesar2164/edx-platform,jbassen/edx-platform